March 10th, 2014
09:21 AM ET

What time is it really?

Currently, the source for precision time is GPS satellites which contain an atomic clock used to synchronize clocks on the ground. But the Pentagon worries the satellites could somehow be jammed. So they want an even more accurate alternative.

Barbara Starr reports.


Filed under: DARPA • Pentagon
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  26. TheAssurer

    No, GPS satellite clocks are about 13 seconds off... but that's supposed to be a secret.

    March 10, 2014 at 3:21 pm | Reply

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